Microstructure and wear behaviour of plasma transferred arc (PTA)-deposited FeCrC composite coatings on AISI 5115 steel

2016 ◽  
Vol 236 ◽  
pp. 26-34 ◽  
Author(s):  
Mustafa Ulutan ◽  
Koray Kiliçay ◽  
Osman Nuri Çelik ◽  
Ümit Er
JOM ◽  
2021 ◽  
Author(s):  
Abhay Ranjan ◽  
Kaushal Kishore ◽  
Varinder Pal ◽  
Manashi Adhikary ◽  
Anup Kumar ◽  
...  

2015 ◽  
Vol 25 (1-2) ◽  
pp. 375-383
Author(s):  
A. Werry ◽  
C. Chazelas ◽  
A. Denoirjean ◽  
S. Valette ◽  
A. Vardelle ◽  
...  

2010 ◽  
Vol 132 (3) ◽  
Author(s):  
P. Skarvelis ◽  
G. D. Papadimitriou ◽  
M. Perraki

Composite coatings containing manganese sulphide as lubricating addition and enhanced with hard carbide particles (TiC, WC) were synthesized on a plain steel substrate using the plasma transferred arc technique. The coatings are well bonded to the substrate, have a thickness of about 1 mm, and are free of any visual defects. They consist mainly of a martensitic or ferritic matrix enhanced with titanium or tungsten carbides and a dispersion of MnS particles. The tribological properties of the composites are assessed using a pin-on-disk device. Both composites possess self lubricating properties, due to the formation of a thin layer of manganese sulphide on their wear tracks. The corresponding friction coefficients vary between 0.25 and 0.28, compared with 0.50–0.60 obtained from similar hard coatings without MnS addition. The wear rates are of the order of 10−5 mm3/m N and are two orders of magnitude lower than those obtained from the substrate material with MnS addition, but without the presence of hard enhancing particles. The wear regime is mild abrasion due to the combined action of both lubricating (MnS) and hard (TiC or WC) particles.


2019 ◽  
Vol 14 (7) ◽  
pp. 717-720 ◽  
Author(s):  
Qiuyue Jiang ◽  
Ye Tian ◽  
Fengyuan Shu ◽  
Hongyun Zhao ◽  
Yiming Sun ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6066
Author(s):  
Artur Czupryński ◽  
Marcin Żuk

This article is the last of a series of publications included in the MDPI special edition entitled “Innovative Technologies and Materials for the Production of Mechanical, Thermal and Corrosion Wear-Resistant Surface Layers and Coatings”. Powder plasma-transferred arc welding (PPTAW) was used to surface metal matrix composite (MMC) layers using a mixture of cobalt (Co3) and nickel (Ni3) alloy powders. These powders contained different proportions and types of hard reinforcing phases in the form of ceramic carbides (TiC and WC-W2C), titanium diboride (TiB2), and of tungsten-coated synthetic polycrystalline diamond (PD-W). The resistance of the composite layers to cracking under the influence of dynamic loading was determined using Charpy hammer impact tests. The results showed that the various interactions between the ceramic particles and the metal matrix significantly affected the formation process and porosity of the composite surfacing welds on the AISI 4715 low-alloy structural steel substrate. They also affected the distribution and proportion of reinforcing-phase particles in the matrix. The size, shape, and type of the ceramic reinforcement particles and the surfacing weld density significantly impacted the brittleness of the padded MMC layer. The fracture toughness increased upon decreasing the particle size of the hard reinforcing phase in the nickel alloy matrix and upon increasing the composite density. The calculated mean critical stress intensity factor KIc of the steel samples with deposited layers of cobalt alloy reinforced with TiC and PD-W particles was 4.3 MPa⋅m12 higher than that of the nickel alloy reinforced with TiC and WC-W2C particles.


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